The Spawn of Death

Rin x Oc x Yukio When Death gave birth, she and Satan made a arrangement that their children would be wed in the future. Now 16 years later it's time for the arrangement, to take motion and the son of Satan and the daughter of Death to be wed, but there's a problem Satan has two sons. Who would she chose or does she has to chose between the two handsome men. rated T for now